Stereoscope.



L. STERN.

STEREOSCOPE.

APPLICATION FILED MAR. 1. 1916.

Patented Sept. 12, 1916.

INVENTOR p iv- ATTOR Y 3 SHEETS-SHEET I.

In: NnRRIS PLIERS 60., Pmnmunia. WASHINGTON, D C,

L. STERN.

STEREOSCOPE.

APPLICATION mm IIAR. 7. 1910.

3 SHEETS-SHEEI 3.

IN l/E/V TOR UNITED STATES PATENT OFFICE.

LOUIS STERN, OF NEW YORK, N. Y., ASSIGNOR TO UNDERWOOD AND UNDERWOOD, OFARLINGTON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

STEREOSCOPE.

Application filed March 7, 1916.

To all whom it may concern Be it known that I, LOUIS STERN, a citizen ofthe United States, and a resident of the borough of Manhattan, city,county, and

State of New York, have invented certain new and useful Improvements inStereoscopes, of which the following is a full, clear, and exactdescription, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in hand stereoscopes and moreparticularly to an improved Scope which can be folded into a completepackage so that it may be readily packed and stored to render itconvenient for transportation.

One of the objects of my invention is to so construct and combine thehood and the picture holder that they may be folded upon their commonsupport and be fitted into each other so that they will be lockedtogether for the purpose of forming a complete package.

Another object is to so construct the various parts that they may bequickly unfolded and will automatically resume their proper positionsfor use as a hand scope.

Other objects will appear from the hereinafter description.

The invention will be fully understood from the following descriptiontaken in connection with the accompanying drawings in which;

Figure 1 is a top plan view of the invention with portions of thefolding hood' shown broken away and partly in section. Fig. 2 is asectional view on line 22 of Fig. 1. Fig. 3 is a section in detail ofthe hinged portion of the picture holder. Fig. 4 is a perspective viewof an adjustable end of the picture holder. Fig. 5 is an end elevationof the scope looking in the direction of the arrow 5 in Fig. 2. Fig. 6is a perspective view of the scope folded and locked into a package.Fig. 7 is a detail in perspective of the latch or locking bar, for thelens hood.

Referring to the drawings in which the same reference charactersindicate the same part in the several views; 10 is a rigid base piecepreferably formed of aluminum having lugs 11 and 12 stamped up at eachend, each lug being provided respectively with holes 13 and 13, toreceive a small rod or pintle 15 by means of which the hood H isSpecification of Letters Patent.

Patented Sept. .12, 1916.

Serial No. 82,524.

pivotally attached and carried upon the base piece 10. A slot 14 isformed in the base piece 10 for the reception of a pin or stud 16 whichforms one of the central pivots for a pair of levers 17 and 18 of theordinary lazy tongs construction, as shown, one of the ends of said lazytongs construction being pivoted at 19 and 19 to the sides of the basepiece 10. The other end of the lazy tong construction is pivoted at 21and 21 to a base piece to which base piece the picture holder P ishinged at 25, said holder being preferably formed of three parts 22, 23and 24. The part 23 is provided with a back 26 and a bottom piece 27extending at right angles thereto, the edge of the bottom piece at 28being utilized to form a portion of the hinged construction by means ofwhich the picture holder is pivotally secured by a rod to the base piece20. The parts 22 and 24 are duplicates in reverse of each other and theconstruction is best described by reference to Fig. 4 which illustratesparticularly the end piece 24. This end piece of the picture holder isadjustably secured by pin and slot connection 30 and 31 and 32 and 33 tothe side and bottom respectively of the main part of the pictureholder.The end piece 22 is similarly secured to the side and bottom of the mainpart of the pictureholder at .30 and 31, and 32 and 33. A spring 34 ismounted on the hinged rod 25 and co-acts with the picture holder P andthe supporting base 20 so that the picture holder will be held by thespring in upright position when the scope is opened for use, and willalso play its part in keeping the hood and holder together when theseparts are locked.

The hood H consists of a main piece to which the lenses L are secured inany suitable way. The upper and lower shade portions of the hood 42 and43 and the side shade portions 44 and 45 are hinged respectively to thetop at 46, the bottom at 47 and the sides at 48 and 48' of thelens-holding portion 40. The top shaped as shown that it will fit, asusual in such constructions, to the forehead of the user, and the bottomportion is likewise shaped as shown so that it will fit the nose andcheeks of the user. The top or upper shade 42 is held normally open by aspring 50 secured to the pivot rod 50 of the upper hinge, and the lowerportion ofthe shade isshade portion42 is so held normally open by aspring 4C6 secured to the pivot rod 51 of the lower hinge. The sideportions l l and 45 are hinged by rods 52 and 52 extending throughperforated lugs 53 and 53' and 5% and 54: at each outer corner of thelens holder. The upper and lower edges of the side portion A and 15 areprovided with horizontal flanges tl, 1%, l5 and d5 against which theedges of the upper and lower plates of the hood respectively impinge tohold said upper and lower portions in place when the scope is open foruse. lVhen the scope is folded, their flanges fit tightly over the upperand lower edges of the lens holding plate. The side portions id and areso fitted to the lens holding plate that the outer edges 60 and 61 abutagainst the ends of the lens holding plate, which abutment prevents thesaid pieces from turning past the vertical.

A pivoted handle D of any approved type is secured to the underside ofthe supporting base 10. The particular form shown is that disclosed inPatent No. 1,157A19 granted to H. E. Richmond, October 19th, 1915, thehandle of which is formed of a U-shaped spring rod being pivotallyattached at its upper end to projecting ears 73 which may be eitherstamped out of metal of the base plate 10 or formed from a separateplate 74: secured to the base plate 10. The notches 75 are provided inthe projecting ears for holding the free ends 76 of the spring rodforming the handle in its upright position, the ears 73 serving tonormally hold the handle in its horizontal position when folded againstthe under-side of the scope.

The lazy tongs support which consist of the levers pivoted to eachother, as usual in such constructions, is so mounted that when openingand closing, one end of the lazy tongs will move and lie upon the uppersurface of the base plate 10 to which the hood is pivoted while theother end of the lazy tongs will move and be adjacent to the undersurface of the base plate 20 to which the picture holder is pivoted. Thepivot pins 16 and 16 are fitted to slide respectively in slots lt and14: formed in the base plates 10 and 20. A handle 72. is fixed to theunderside of the base plate 20 for convenience in opening and closingthe lazy tongs.

70, 70, 71 and 71 are lips integral with the projections 90 and 90,which projections extend downwardly from the lens carrying plate. Thelips form hinges with the projection at the outer edge of the base plate10. The projections 90 and 90 impinge against the front edge of theplate 10 and hold the hood in an upright position against the pressureof the pivot spring when the scope is open for use.

The hood or lens carrying frame is held in place when in its uprightposition, against any pressure which may be brought upon it by the headof the user, by means of the simple latch or coupler illustrated in Fig.7.

A tube 80 is secured in any suitable way to the front edge of the baseplate 10, the inside of the tube being so shaped as to securely fit andhold a rod 81 to which rod is secured a handle 82 which projects througha longitudinal slot 83 in the tube 80. At the ends of the rod 81,preferably rectangular but of any suitable shape in cross section, aresecured coupling caps Sat and 8% each of which may be provided with lips85 and 85 as shown to limit the movement of the coupler. It is thereforeclearly seen that by means of this construction, when the lock is movedsidewise in one direction, the coupling pins 8st and 81 will be freefrom engagement with the projections and 90 from the lens plate orcarrier, and when the lock is moved sidewise in the opposite directionthe coupling pins 84; and 84: will engage with the projections 90 and 90thereby securely holding the lens plate in its upright position, andwill prevent the hood from being turned on its hinges when in use due topressure from the head of the user.

By means of the structure herein described, the scope may be folded intoa package by turning on their pivots in the direction of the arrows 1and 2 in Fig. 1, the upper and lower portions of the hood against thelens-holding plate, and then turning on their pivots in the direction ofthe arrows- 3 and 4 in Fig. 1, the twoside pieces of the hood againstthe upper and lower portions. The adjustable sides or ends of thepicture holder are then moved outwardly and the picture holder and hoodare respectively moved on their pivots down against the surface of thelazy tongs so that the hood and picture holder are both parallel to thelazy tongs, and the hood is in position to project into the pictureholder. By closing the lazy tongs, the entire hood is shoved into thepicture holder, the side portions of the picture holder are then pressedinward to embrace the ends of the hood thereby forming a neat compactpackage as shown in Fig. 6. The springs of the hinges for the hood andfor the picture holder and also the springs for the hi uges of theupper, lower and side shades of the hood all tend to force the partsinto en gagcment one with the other so that the package is normally heldby this spring pressure in its compact shape.

The different parts of the hood and picture holder are formed preferablyof sheet aluminum, but obviously the material may be of any suitablemetal or other rigid mate rial, and are made by means of suitable diesso constructed that the different parts will be so pressed as to formthe various hinged elements.

I preferably form a curve or bead of metal at the outer edges of theplates of the hood at 4:9 and 49 which 'bear against and protect theface of the user.

It is apparent that changes may be made without departing from thespirit or scope of my invention, and while I have shown certain featuresof my invention in the accompanying drawing, it is to be understood thatsaid drawing is merely illustrative and that I am not confined to whatis there shown and herein described in connection therewith, except asmay be specifically set forth in the claims.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a stereoscope, a support, a lens frame, pivotally attachedthereto, a picture holder also pivoted to the support, means for movingthe lens-frame and picture holder to and from each other and means forsecuring the lens-frame in the picture holder.

2. In a stereoscope, a pivoted hood, a pivoted picture holder, means forconnecting the hood to the picture holder, means for folding the hoodand the picture holder respectively in horizontal positions, means forsecuring the hood in the picture holder while in their respective foldedpositions.

3. In a stereoscope, a support, a lensframe and a picture holderrespectively pivoted thereto, means for normally holding the lens-frameand the picture holder in parallel planes perpendicular to the support,means for securing the lens-frame and the picture holder one within theother parallel to the plane of the support.

4. In a stereoscope, a lazy tongs construction, a lens-frame and apicture holder pivoted at or near the respective ends thereof, and meansfor inclosing the lens-frame in the picture holder upon contraction. ofthe lazy tongs.

5. In a stereoscope, a hood, a support therefor, a spring operated pivotbetween the hood and support, a picture holder, a support therefor, aspring operated pivot between the picture holder and the support,extensible means between the two supports, means for folding the hoodand the picture holder in horizontal positions upon their respectivesupports, means for securing the hood within the picture holder oncontraction of the extensible means.

(i. In a stereoscope, in combination a hood provided with pivotedshades, a picture holder, an extensible connecting means between thehood and the holder, means for holding the shades in position againstthe body of the hood, and means for holding the hood, shades and pictureholder in telescopic position against the body of the connecting means.

7. In a stereoscope, in combination a support, a hood pivoted thereto, asupport, a picture holder pivoted thereto, shades pivoted to the lenspart of the hood, an eX- tensible connection between the two supports,means for holding the shades substantially parallel to the lens holder,and the holder and shades in folded position inside of the pictureholder.

8. In a stereoscope, a support, a collapsible hood pivoted thereto, asecond support, a collapsible picture holder pivoted thereto, extensiblemeans connecting the two supports, means for positioning the hood andpicture holder substantially in the same plane and means for drawing thecollapsed hood into the collapsed picture holder to form a compactpackage.

9. In a stereoscope, an extensible support, a hood provided with shadespivoted thereto, means for pivotally securing said hood to an end of theextensible support, a picture holder, means for pivotally securing saidholder to the opposite end of the said extensible support.

10. In a stereoscope, a lens holder, a support therefor, means forpivotally connecting the lens-holder to the support, a latch mounted onthe support for securely holding the lens holder either in a vertical orhorizontal position.

11. In a stereoscope, a support, a collapsible hood pivotally securedthereto, a sliding latch, co-acting means on the latch and on the hoodrespectively to hold the hood either in a horizontal or vertical position.

12. In a stereoscope, a support, a lens holder, means for pivotallysecuring the one to the other, spring means normally holding thelens-holder in a vertical position, a sliding latch, means on the latchto engage the lens holder when the latch is moved in one direction, andto disengage the lens holder when the latch is moved in the oppositedirection, and means for positively latching the lens-holder either in ahorizontal or vertical position.

In witness whereof I have hereunto set my hand at the borough ofManhattan, city and State of New York, this 24th day of February, 1916.

LOUIS STERN. In presence of:

ETHEL D. BARON, IsABEL RIRIGHARDS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Iatentn. Washington, D. C.

